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Every UK forecast, compared
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CheckWeather UKPortstewart

Portstewart weather

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Met OfficeUKMO model
15°
Overcast
Feels 13° · Wind 9 mph · Humidity 82%
EuropeanECMWF
14°
Partly cloudy
Feels 13° · Wind 7 mph · Humidity 92%
AmericanNOAA GFS
13°
Overcast
Feels 12° · Wind 7 mph · Humidity 90%

Latest for Portstewart: Met Office (UKMO model): 15° Overcast · European (ECMWF): 14° Partly cloudy · American (NOAA GFS): 13° Overcast.

The weather map: all three models at once

Met Office, European, American side by side around Portstewart and nearby towns.Live rain radar →
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Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split

Portstewart, Northern Ireland is at its warmest in Jun (average highs near 18°C) and coldest in Jan (lows around 3°C), with roughly 1292 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Portstewart right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United Kingdom before you trust any single number.

Portstewart climate by month

average daytime high and overnight low across a typical year
Jan
Feb
10°
Mar
Apr
12°
May
15°
Jun
18°
11°
Jul
17°
12°
Aug
18°
12°
Sep
17°
11°
Oct
14°
Nov
10°
Dec

Which forecast is most accurate in Portstewart?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
Met Office logo
Met Office ★ Best
87
/100rank #1
91±0.5°C96±1.2 mph7687% hitMet Office (United Kingdom)Exeter, United Kingdom
European logo
European
87
/100rank #2
90±0.6°C96±1.3 mph7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
84
/100rank #3
87±0.7°C96±1.1 mph7184% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1880 cities. Lower error means a higher score. See which forecast model is most accurate in United Kingdom, how we measure forecast accuracy, or which model each weather app uses.

Common questions

What's the weather in Portstewart today?
On this page we show what Met Office, European, American each forecast for Portstewart today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Portstewart today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for Portstewart and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Portstewart?
Over the last 30 days, the Met Office model has been the most accurate for Portstewart (CheckWeather Score 87/100), ahead of the European at 87. We grade every model against the recorded weather. See the UK accuracy scoreboard for the full method.
What is the warmest month in Portstewart?
June is typically the warmest month in Portstewart, with average highs around 18°C.
How cold does Portstewart get?
The coldest month in Portstewart is January, when overnight lows average about 3°C.
How much rain does Portstewart get?
Portstewart sees roughly 1292 mm of precipitation a year, with December usually the wettest month.

Nearby

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